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How do you get the sand out of the sand tank and replace the laterals

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1st unplug pump and cover with waterproof material
2nd unbolt band that passes around the center of sand filter
3rd use wet/dry vac to suck the sand out and dispose of it ,dont reuse it
4th after sand is gone you can see areation fingers well , replace any and all that seem bent/cracked
dont forget to relube the o-ring joint/ s with waterproof grease (plumbing part) before putting back together

Posted on Jan 08, 2015

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Posted on Jan 02, 2017

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Sand Leaking From Filter into Pool. When my filter is running I am experiencing sand in the bottom of my pool from the filter. What can be causing that?


There is only one thing that can cause sand to come back into the pool from a sand filter. The internal assembly, called the lateral assembly, is either cracked or broken. This is an easy fix and should cost you around $70 to replace the whole thing. You need to unscrew the bottom drain cap on the filter to remove the water in the tank. Then, remove the multiport valve on top of the filter. Take a shop vac and remove the sand in the filter. If the sand hasn't been replaced in the last 3-5 years, this would be a great time to do that since you already have the sand out anyway. Then, remove the lateral assembly and inspect the entire thing. After you replace the lateral assembly, you'll need to fill the sand filter tank 1/2 full of water before adding fresh sand. This is done to cushion the laterals from the weight of the sand. Cover the hole in the top of the lateral assembly pipe with a cup or duct tape to prevent any sand from getting inside the pipe (the sand will come out into the pool if it gets into the pipe). Fill the tank 3/4 full of pool filter sand. Make sure it is genuine silica pool filter sand from a pool company. A lot of big box and home improvement stores sell play sand as filter sand. This will cause you more problems!

Jun 16, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

How to change sand in sand filter model sp 312


  • For our top mount filter, you must first disconnect the pipes leading into the valve and open the drain plug on the filter. Next, remove the clamp holding the multiport valve to the tank body. Once the valve has been removed, you will be able to see the sand bed. The best way to remove the sand is to either use a portable wet/dry vacuum or just scoop it out with a small can. Once the old sand has been removed, hose out the inside of the tank to clean the filter out. Once this water is drained, replace the drain cap and fill the tank 2/3 full of water. This is to protect the lateral assembly while the new sand is added. Add the sand slowly till the laterals are fully covered, then just pour in the remaining sand. DO NOT get sand in the vertical pipe sticking up from the bottom of the filter tank. The standpipe may be covered with a paper cup to prevent sand going into the pipe.
  • For a side mount tank, rotate the multi-port valve to the closed position and open the filter's drain plug. Remove the tank closure dome and expose the top diffuser. The top diffuser lifts off and the old sand can be removed. The best way to remove the sand is to either use a portable wet/dry vacuum or just scoop it out with a small can. Once the old sand has been removed, hose out the inside of the tank to clean the filter out. Once this water is drained, replace the drain cap and fill the tank 2/3 full of water. This is to protect the lateral assembly while the new sand is added. Add the sand slowly till the laterals are fully covered, then just pour in the remaining sand. DO NOT get sand in the internal piping.
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Jun 06, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

Sand coming into pool from newly installed 220 hayward sand filter. It was recommended by the local pool distributor to add a 50 pound bag of gravel to the bottom and then 200 pounds of #20 sand. Should...


The problem was you didn't fill the tank with water or added the gravel to fast and now the lateral assembly is broken and letting sand into the pool. You'll need to empty the tank and replace the laterals. Add gravel slowly after you fill the tank half-way with water first.

John

May 13, 2011 | Hayward SAND FILTER, PRO SERIES

2 Answers

How do i change the sand in the hayward model sp 711


Hello, 1 You need to unscrew the drain plug and screen (if it is still there!) at the base of the filter. 2 You can reclaim most of the sand by letting the filter drain through a sieve (lots of work) or use new sand. 3 Uncouple union joints or couplers that attach to filter head. 4 Remove filter head. 5 You can try pulling some sand out of the top. However, do not damage the filter fingers in the sand. 6 Use a hose to blast the sand out the bottom drain. 7 Inspect all fingers, replace if necessary. 8 After all is cleaned out, place finger mount inside filter. Cover top of mount with a cup or similar to keep the new sand out of the finger assembly. 9 Replace drain plug and screen. 10 Fill filter halfway with water. 11 Slowly pour sand in and spread evenly. 12 Remove mount cover. 13 Reinstall head, unions and couplings. 14 Prime pump and test for leaks.
Good Luck

May 13, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

Was getting sand in my pool. Was advised that the laterals probably needed replacing. I took them out and they were good. So was told I probably needed to replace the sand. I did. Now I see sand in...


You are dealing with very small fractions of fractions of an inch with the sand crystals and the lateral assembly. You cannot tell by looking at them that they are good or bad. If you are getting sand back in the pool, replace the laterals.

Be sure to fill the tank half way with water before adding the sand back in to ensure the falling sand does not damage the laterals.

A little sand in the backwash sight glass is not unusual, especially with new, unsettled sand. It should stop or get to be very minimal in a short time.

John

Mar 27, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

Removed all old sand from filter put new sand in but getting lots of sand in the pool


when removing the old sand, you have to be extremely careful not to break any of laterals at the bottom of the tank. Also, when you added the sand, you should have filled the tank with water at least up to the lateral assembly/hub. If you have not broken a lateral and filled the tank with water up to the laterals before adding the new sand, you could have a problem with the multiport valve. Make sure the spider gasket inside is in place and not damaged/deformed. Also make sure the spring is not broken. Those are the only problems you can have with sand returning to the pool.

Sep 15, 2010 | Hayward SAND FILTER, PRO SERIES

1 Answer

Why does my hayward pro series s244s blow out sand when the filter is put on, and has little to no pressure?


This indicates that one or more of the laterals are cracked or broken. You will need to open the tank, remove all the sand, inspect the laterals(tubes that come off the center 'stand pipe'). replace any that have cracks or are broken. If you can't tell, replace them all. Fill tank back up with the right amount of sand and close it all back up.
www.cpo2go.com

Jul 08, 2010 | Hayward SAND FILTER, PRO SERIES

1 Answer

Instructions on placement of the lateral assmebly w/center pegs


That placement is automatic based on the center pipe resting on the bottom of the filter tank and the valve being fully seated into the opening on top of the filter and clamped into possition. You likely have damaged laterals and need to replace that assembly in order to fix the sand issue. When refilling the tank with sand, be sure to fill it nearly half way with water before adding the sand.

Jul 15, 2009 | Plumbing

1 Answer

Our two-year old filter is not cleaning the water. I have run cleaner throught the system. I have now done two rounds of chemicals to help clotting in the filter. It has been two weeks and I still do not...


There can be a couple of different reasons for this issue to happen. The first thing to know is if you have had an algae issue. If you have had an algae issue, all of the chemicals will not kill the algae inside the filter itself. You will need to comletely empty the filter of sand, wet/dry vac works best, take the internal parts out of the filter and soak them in bleach water, then replace the drain plug and put bleach water in the tank. Scrub the bottom and sides of the tank, a long handled brush works well, and then drain that water out. Rinse out the tank with a hose, reassemble the parts in the tank- MAKE sure that the laterals are in tightly. IF you have laterals with "slots" on one side and solid plastic on the other, the slots MUST GO DOWNWARD, or you will be pouring sand right into the pool.

IF you have not had an algae issue, you may have "packed" sand in the filter. You will need to open the filter up and mix that sand around, being areful not to break a lateral on the bottom.

If there is sand returning to the pool, you may have a broken lateral that needs to be replaced. For an Owner's Manual on the Sand Dollar, use the following link:

http://www.pentairpool.com/pdfs/SandDollarOM.pdf

Hope this helps!

Jun 14, 2009 | Pentair Sand Dollar 19" Filter with 1 Hp...

1 Answer

Sand coming out of my sand filter into the pool after changing the sand in the filter


Replace the lateral assembly. Be sure to fill the tank just under half way with water before adding the sand back in. Otherwise you risk cracking the laterals.

Jun 14, 2009 | Hayward Pro Series 18" Above Ground Pool...

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